Hoist



June 21, 1927.

o. E. CLARK HOIST 'June 21, 1927.

1,633,543 O. E. CLARK HOIST Filed Dec. 11. 1923 2 Sheets-Sheet 2 om t-en El time, or DENVER, COLORADO.

Y nhrscr.

libiiiicatibh ind nmii 11, 15 23. siiiii it d. 680,056."

The present invention relates to double (ii-uni hoists, and the object is to providea simple structure; involving a reversible motor, a pair otwindi'ni drurns, and means of a novel character for supporting the drums and coupling one to the motor when said motor is operated'in one direition While the other is released, and coupling the,other to the motor when said nroto'r isopei ate diin an opposite direction, 'atthe same time releasing the first drurnl In the acconipaiivine drawings; I

Figure 1 is a view partially in elevation and partially inlongitudinzil sect-ion, showing the novel construction; I h "M; l tail sectional view on. afli line 22 of Figure Figure 2 is enlarged scale and on the Figure 3 is a detail vertical sectional view on the line 33 of Figure 1 v In the embodimentdisclosed, a suitable base 4 is employed, havirig spaced supports 5 and The supporth carriesasuitable reversiblenlotor V known or desired cl hiter. The supp rts is provided with age-a1- housingB having" an inner side Wall 9 and an outerrelhovable cover plate 10, constituting an outer wall.

The support? includes a'journal box 11, and cit-ending from said journal'box to the gearhousing, is, a tubular shaft 12, one end havinga roller tem-isms in the box 11, the other end having; roller heaiin inner wall 9 of the housing The shaft projects beyond the bearing 14 and into said housing. A motor shaft 15 extends rmmthe motor 7, through the tubular 12 in spaced thereto, and is provided relation a ball bearing 16 in the box 1 1,its opposite end extending; across the gear housing, and having a ball bearing 17 in the oute'ravall or cover plate 10. GearinQlS Within the housing connects the ends of the shafts lf) and 12 that are in said housing, As anonsequence it Will becvident that when the motor 7 is driven in one direction the tubular shaft 12 will be rotated in onedirectionand when the motor 7 is driven in the opposite direction the shaft 12 Will also be rotated in the opposite direction.

Loosely journaled directly on the tubular shaft 12 between the journal box 11 and in ner Wall 9 of the gear housingand arranged end to end on said shaft 12, are separate Winding drums 19 and 20, these drtfnis hav- 7, which ma be of any Well on their adjacent ends'or heads, rings of clutch teeth '21 and 22, the teethcof one ring being arranged, oppositely to tl'iose of the other in a mniir well understood; A driviflg mainteis neeuyexeu to the shaft-12 betvveen the heads This driving Inernber' .may'cbnsistof a contractile split clamping rii i end'sbfvvhich are connected by tie bolts '24, and said may be keyed, as

illustrated 25, to the shaft 12. The ring" carries an outstanding mun portion 26; in the forth of a head, andin the outer end of ar-ahead is mounted a transversely reciproeating dog 27 having its en'ds28 oppositely beveled, each end beingadapted to interlocl'c with the sharp shoulders of theteeth 21 and 22 respectively and the beveled sides being in'clin'etl' so as to ride outwardly on the inclined shoulders. The usual brake bands 29 may be provided for retarding or holding thedruins.

With the constructiondisclosed, it'will be clear that when the motor 7 is running in one direction and the shaft 12, as above stateth is being thereby rotated in one direction, one

end of the dog 27 will be engaged with one of the clutch'teeth of one of the drums,;as illustrated in Figures 1 and 2 While' said dog will be disengaged from the teeth oi the other dr'uinQ Therefore one drum will be positively rotated While the other will be free; It noiv the direction of rotation of the motor 7 is reversed the inclined side 01 the end of the dog, engaged with the tooth Will be brought into contact with an inclined face of the adjacenttootln As aconsequence the dog will be shiftedlongitudinally of it self and transversely of'the driving member so that the right angular fare-of-the other end of said dog" will be brought into; abut merit with the sharp face ofone ot the teeth of the other drurn. As aconsequence the first drurn' will be released and the second drum will be automatically coupled to the motor rota'tedin'th'e opposite direction. This alternate clutching action between the motor and the two druins will take place on the reversed operations of the motor.

Fromthe fo'regoing it is thought that the cens truction, operation and many advan ta g es' ofthe herein described invention will be appa ent to those skilled in the art, Without further descriptien; and it will be understood that various changes in the size shape, proportion and minor details of construction lit may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim, is I I 1. In combination, areversibly rotatable shaft, and means for rotating it in reverse directions, a radially disposed driving head rigidly fixed to the shaft, winding drums loosely journaled on the shaft on opposite sides of the head, and a reciprocable dog having a movable engagement with the outer portion of the head remote from the shaft for alternate engagement with the drums to rotate them in opposite directions on the reverse rotation of the shaft.

2. In combination with a base, a motor and a gear housing in spaced relation thereon, a tubular shaft rotatably supported be tween the motor and gear housing,"a re versible motor shaft within the tubular shaft, gearing in the gear housing connecting the shafts, independent drums loosely journaled with respect to the tubular shaft and supported thereby, and means for automatically connecting one of the drums tothe tubular shaft when it is rotated in one direction and automatically connecting the other drum to the tubular shaft when it is rotated in the opposite direction.

8. In combination with a base, a motor and a gear housing in spaced relation thereon, a tubular shaft journaled at one end at the inner side of the motor and at the other end at the inner side of the gear houstween the drums and alternately movable into engagement with the drums.

l. In combination with a base, a reversible motor mounted thereon, a gear housing mounted on the base in spaced relation to the motor and having ,(an inner and an outer wall, a tubular shaft journaled at the inner side of the motor, and in the inner wall ot the gen limiting, and shalt pro ecting into the tilt housing, it tlttltth' ttltt't oitendingthroughttiitiituhistiiittiiiiit oin?- I i noted in the outer wail of the gear housing, gearing in the housing connecting the portions of the shafts therein. clrnins loosely journalecl on the tubular shaft betwveen the motor and gear housing ancl supported by the tubular 5115x1513, and means for clutching the drums to t11e tubcrlar Share.

.side of the motor, and in the inner wall of latter is rotated in one' direction and for connecting the other drum to the shaft when said shaft is rotated in the opposite direction.

6. The combination with a support, of a reversible motor thereon, a gear housing on the support spacedfrom the motor, a motor shaft rotatably driven in opposite directions by the reversible motor and extending across the space between thev motor and gear housing and projecting into the latter, a tubular shaft surrounding the motor shaft and projecting into the gear housing, gearing in the housing for rotating the tubular shaft from the motor shaft, a plurality of separate rotatable winding members loosely mounted side by side on the tubular'shaft, and means for clutching either member to the shaft.

.7. Thecombination with a support, of a reversible motor thereon, a gearfhousing on the supportspaced from the motor, a motor shaft rotatably driven in opposite directions by the reversible motor and extending across the space between the motor and gear housing and projecting into the latter, a tubular shaft surrounding the motor shaft and projecting into the gear housing, gearing in the housing for rotating the tubular shaft from the motor shaft, a plurality of rotatable windingmembers mounted side by side on the tubular shaft, and means for connecting either of the members to and disconnecting it from the shaft.

8. The combination with a support, of a I reversible motor thereon, a gear housing on the support spaced from the motor, a

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ttttttitlttttittttlht.[tlthtttttitlttttttilt iltttt', a tubular shaft surrounding the motor shaft it; ifftti ffitstfiirttl fiiititgtiiil tttfiii; $355,533ifihtnfi tifnttiifis.iulitti iiiii a side on the tubular shaft, and clutch (Tie-(111s for connecting either lnxenlber to tlae tubLrlar 01-1; qxban.

ill.

by the reversible motor and extending across the space between the motor and gear housing and projecting into the latter, a tubular shaft surrounding the motor shaft and projecting into the gearing housing, gearing in the housing for rotating the tubular shaft from the motor shaft, a plurality of rotatable winding members mounted side by side on the tubular shaft, and clutch means for connecting either member to the tubular shaft and simultaneously disconnecting the other therefrom.

10. The combination with a support, of a reversible motor thereon,.a gear housing on the support spaced from the motor, a motor shaft rotatably driven in opposite directions by the reversible motor and extending across the space between the motor and gear housing and projecting into the latter, a tubular shaft surrounding the motor shaft and projecting into the gear housing, gearing in the housing for rotating the tubular shaft from the motor shaft, means for effecting the movements of a load-carrying device toward and from the apparatus including a plurality of separately rotatable members rotatably mounted side by side on the tubular shaft, and means for connecting either device to and disconnecting it from the tubin lar shaft.

11. The combination with a support, of a reversible motor thereon, a gear housing on the support spaced from the motor, itlllOhO]? shaft rotatably driven in opposite directions by the reversible motor and extending acrossthe space between the motor and gear housing and projecting into the latter, a tubular shaft surrounding the motor shaft and projecting into the gear housing, gearing in the housing for rotating the tubular shaft from the motor shaft, a pair of winding drums loosely journaled end to end on the tubular shaft and having clutch elements on their adjacent ends, and a dog member between the drums rotated by the tubular shaft and movable alternately into engagement with the clutch elements of the drum ends, said clutch elements and dog member having coacting means to cause the automatic shifting of the dog member from one clutch element to the other and its driving engagement with the latter accordingly as the rotation of the shaft is reversed.

12. The combination with a support, of a reversible motor thereon, a gear housing on the support spaced from the motor, a motor shaft rotatably driven in opposite directions by the reversible motor and extending across the space between the motor and gear housing, a tubular shaft surrounding the motor shaft, gearing in the housing for rotating'the tubular shaft from the motor shaft, a plurality of rotatable members supported by the tubular shaft between the ment shaft and interposed between the drums, and

a pawl mounted on the driving member at one side of the shaft to turn with the shaft and automatically reciprocated by the teeth of the drums from one drum to the other when the direction of rotation of the shaft is reversed to clutch one or the other of said drums to the shaft.

14. The combination with a shaft, of drums loosely journaled directly on the shaft and located end to end, the adjacent opposing ends of said drums having oppositely disposed clutch teeth, a pawl mounted to turn with the shaft and automatically reciprocated by the teeth of the drums from one drum to the other when the direction of rotation of the shaft is reversed'to clutch one or the other of said drums to the shaft, a motor that is operable continuously in opposite directions, anda shaft driven by the motor, extending through the first shaft and geared to the first shaft to rotate it con? tinuously in one direction or the other.

15. The combination with a shaft, of drums journaled directly on the shaft end to end and having oppositely set teeth on their opposing adjacent ends, a head on the shaft between the drums, a dog movably mounted on the head wholly at one side of the shaft so as to turn with said shaft and having oppositely disposed terminal I upon the shaft, one upon either side of the driving head, and a reciprocable dog mounted in the free end of the driving head remote from the shaft for alternate engageith the drums to rotate them in opposite directions.

In testimony whereof, I aflix my signature.

OMAR E. CLARK. 

